Earthquake with magnitude of ML 0.7 on date 11-04-2011 and time 22:39:35 (Italy) in region 4 km SW Strangolagalli (FR)

A magnitude ML 0.7 earthquake occured in region: 4 km SW Strangolagalli (FR), on

  • 11-04-2011 20:39:35 (UTC)
  • 11-04-2011 22:39:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5780, 13.4650 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Strangolagalli FR 4 2491 2491
Pofi FR 4 4204 6695
Ripi FR 5 5270 11965
Ceprano FR 6 8897 20862
Arnara FR 6 2309 23171
Boville Ernica FR 7 8737 31908
Torrice FR 8 4816 36724
Fontana Liri FR 8 2953 39677
Monte San Giovanni Campano FR 8 12929 52606
Castro dei Volsci FR 9 4781 57387
Arce FR 9 5756 63143
Falvaterra FR 10 554 63697
Rocca d'Arce FR 10 959 64656
Ceccano FR 11 23565 88221
San Giovanni Incarico FR 11 3336 91557
Frosinone FR 12 46323 137880
Colfelice FR 12 1932 139812
Pastena FR 12 1462 141274
Veroli FR 13 20560 161834
Castelliri FR 14 3454 165288
Villa Santo Stefano FR 14 1720 167008
Santopadre FR 15 1357 168365
Arpino FR 15 7262 175627
Isola del Liri FR 15 11715 187342
Vallecorsa FR 16 2643 189985
Giuliano di Roma FR 16 2400 192385
Pico FR 16 2888 195273
Amaseno FR 16 4368 199641
Roccasecca FR 17 7365 207006
Prossedi LT 18 1202 208208
Patrica FR 18 3171 211379
Lenola LT 19 4189 215568
Colle San Magno FR 19 699 216267
Alatri FR 20 28952 245219
Broccostella FR 20 2741 247960

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km E of Latina (125985 inhabitants)
58 Km E of Velletri (53303 inhabitants)
68 Km E of Aprilia (73446 inhabitants)
70 Km SE of Tivoli (56533 inhabitants)
71 Km E of Anzio (54211 inhabitants)
77 Km SE of Guidonia Montecelio (88673 inhabitants)
81 Km E of Pomezia (62966 inhabitants)
86 Km S of L'Aquila (69753 inhabitants)
89 Km E of Roma (2864731 inhabitants)
91 Km NW of Aversa (53047 inhabitants)
92 Km NW of Caserta (76326 inhabitants)
95 Km NW of Giugliano in Campania (122974 inhabitants)
97 Km NW of Pozzuoli (81661 inhabitants)
97 Km NW of Marano di Napoli (59874 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 1.6
ML 0.7
2011-04-11
20:39:35
41.578 13.465 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1195279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-04-11 20:39:35 ± 0.2
Latitude 41.5780 ± 0.0054
Longitude 13.4650 ± 0.0096
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1195279

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 657
Semi-minor axis of confidence ellipse (meter) 644
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.15828
Epicentral distance of station farthest from the epicenter (degree) 0.31386
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1195279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:22:14

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1195279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:22:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHE. 2011-04-11T20:39:47.39 0.6 undecidable manual Sg 22 34.8429 0.011 49
IV.GUAR.HHN. 2011-04-11T20:39:44.67 0.6 undecidable manual Sg 332 27.0507 -0.086 49
IV.VVLD.HHE. 2011-04-11T20:39:42.13 0.3 undecidable manual Pg 22 34.8429 -0.018 73
IV.GIUL.HHN. 2011-04-11T20:39:41.70 0.6 undecidable manual Sg 263 17.5713 0.066 50
IV.GUAR.HHN. 2011-04-11T20:39:40.78 0.6 undecidable manual Pg 332 27.0507 0.144 48
IV.GIUL.HHN. 2011-04-11T20:39:38.77 0.1 undecidable manual Pg 263 17.5713 -0.062 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download